This is a vintage 1956 Mickey Mantle "How I Hit" booklet Lifebuoy Soap premium. This 16 page booklet written by Mickey Mantle was made available through a send in coupon cut out from an ad. The booklet was free, with three carton fronts from any sized Lifebuoy soap. Additional Books could be order as well. The book contains Mickey Mantle Batting secrets, tips, and features pictures of Mickey Mantle and his family. The facsimile signature pictured below on page one is of the way he signed early in his career